Replaced PCM now car wont crank
#1
Replaced PCM now car wont crank
I purchased a PCM from the salvage yard for my 2006 Z06. The PCM I purchased is a 12597121 which differs from the PCM in the car. I had my tuner unlock and transfer my tune with HP Tuners, but when I put it in the car will not crank. Am I missing a step?
Thank you
Thank you
#2
Team Owner
There's a security "relearn" procedure IIRC.
The following users liked this post:
Josh Dockstader (07-28-2017)
#4
#5
Team Owner
When drivers door is open does the security light on dash flash, off or stay solid on ?
If its not flashing then the PCM and the BCM need to relearn and sync up that security code
This is a security relarn proceedure...but this may not be your issue. You may wind up needing a scanner.
Turn ON the ignition leaving the engine OFF for 11 minutes.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF for 11 minutes.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF for 11 minutes or until DTC P1630 sets.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF and wait 30 seconds.
Attempt to start the engine. If the engine does not start, Refer to the Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.
Important:
Performing this procedure may cause a DTC P1630 to set. If a DTC P1630 sets, turn OFF the ignition for 30 seconds, then turn ON the ignition. If the DTC P1630 does not clear, Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.
Last edited by MTPZ06; 07-28-2017 at 09:05 PM.
The following 3 users liked this post by MTPZ06:
#6
Do you know if your tuner did a vin flash as well?
When drivers door is open does the security light on dash flash, off or stay solid on ?
If its not flashing then the PCM and the BCM need to relearn and sync up that security code
This is a security relarn proceedure...but this may not be your issue. You may wind up needing a scanner.
Turn ON the ignition leaving the engine OFF for 11 minutes.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF for 11 minutes.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF for 11 minutes or until DTC P1630 sets.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF and wait 30 seconds.
Attempt to start the engine. If the engine does not start, Refer to the Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.
Important:
Performing this procedure may cause a DTC P1630 to set. If a DTC P1630 sets, turn OFF the ignition for 30 seconds, then turn ON the ignition. If the DTC P1630 does not clear, Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.
When drivers door is open does the security light on dash flash, off or stay solid on ?
If its not flashing then the PCM and the BCM need to relearn and sync up that security code
This is a security relarn proceedure...but this may not be your issue. You may wind up needing a scanner.
Turn ON the ignition leaving the engine OFF for 11 minutes.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF for 11 minutes.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF for 11 minutes or until DTC P1630 sets.
Turn OFF the ignition for 30 seconds.
Turn ON the ignition leaving the engine OFF and wait 30 seconds.
Attempt to start the engine. If the engine does not start, Refer to the Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.
Important:
Performing this procedure may cause a DTC P1630 to set. If a DTC P1630 sets, turn OFF the ignition for 30 seconds, then turn ON the ignition. If the DTC P1630 does not clear, Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls.
#9
#13
Team Owner
Looks like he's on the right track though.
#14
Crank relearn is done. I replaced the ecm after following the progressions of diagnosing the P0621 cel. Car was blowing the alt fuse and is getting a really bad voltage drop when racing.